Establishing benchmarks for analyzing benefits associated with voltage scaling, analyzing the benefits and an apparatus therefor
Methods for establishing benchmarks and for analyzing benefits associated with voltage scaling are provided. In one embodiment, the method for establishing benchmarks includes: (1) synthesizing a netlist from a RTL of a functional IC design; (2) implementing a layout of an IC from the netlist, wherein the synthesizing and the implementing are performed at designated voltages and frequencies over a voltage and a frequency range, the voltage range including a voltage scaling range and a voltage associated with a designated implementation of the IC; (3) obtaining measurements of at least one voltage scaling metric associated with the IC at each of the designated voltages and frequencies; and (4) normalizing measurements associated with the voltage scaling range to measurements associated with the designated implementation employing a processor to obtain normalized benchmarks for analyzing optimization of the IC associated with voltage scaling. EDA tools may be used for synthesizing, implementing and obtaining.
1. A method of establishing benchmarks to analyze benefits associated with voltage scaling, comprising:
synthesizing a netlist from a register transfer level of a functional integrated circuit design employing a first EDA tool;
implementing a layout of an integrated circuit from said netlist employing a second EDA tool, wherein said synthesizing and said implementing are performed at designated voltages and frequencies over a voltage range and a frequency range, said voltage range including a voltage scaling range and a voltage associated with a designated implementation of said integrated circuit;
obtaining measurements of at least one voltage scaling metric associated with said integrated circuit at each of said designated voltages and frequencies employing a third EDA tool; and
normalizing measurements associated with said voltage scaling range to measurements associated with said designated implementation employing a processor to obtain normalized benchmarks for analyzing optimization of said integrated circuit associated with voltage scaling.
2. The method as recited in claim 1 wherein said voltage scaling range is based on a technology node of said integrated circuit.
3. The method as recited in claim 2 wherein said designated implementation is at a designated worst corner from process-voltage-temperature corners associated with said functional integrated circuit design.
4. The method as recited in claim 3 wherein said designated worst corner with respect to performance is a worst-case-slow-corner.
5. The method as recited in claim 1 further comprising obtaining a plurality of voltage scaling metrics.
6. The method as recited in claim 5 wherein said plurality of voltage scaling metrics includes a metric selected from the group consisting of:
a performance metric,
a leakage power metric, and
a dynamic power metric.
7. The method as recited in claim 5 wherein said plurality of voltage scaling metrics includes a metric selected from the group consisting of:
a utilization metric, and
an area metric.
8. The method as recited in claim 1 wherein said implementing includes placement and routing of active elements of said functional integrated circuit design based on said synthesizing.
9. The method as recited in claim 1 wherein a high temperature is used for said voltage scaling range, said high temperature based on process-voltage-temperature corners associated with said functional integrated circuit design.
10. The method as recited in claim 1 wherein said voltage scaling is adaptive voltage scaling and optimization.
11. The method as recited in claim 1 wherein said first EDA tool, said second EDA tool and said third EDA tool are each a different EDA tool.
12. A method of analyzing benefits to an integrated circuit associated with voltage scaling techniques, comprising:
obtaining measurements of voltage scaling metrics over a voltage range and a frequency range across an register transfer level through place and route portion of a design flow for said integrated circuit employing EDA tools;
normalizing said voltage scaling metric measurements over a designated implementation for said integrated circuit to obtain normalized benchmarks; and
assessing, by employing said normalized benchmarks, a metric profile of said integrated circuit offered by voltage scaling techniques, wherein said normalizing and said assessing are performed by a processor.
13. The method as recited in claim 12 wherein said designated implementation is at a designated worst-case corner from process-voltage-temperature corners associated with said integrated circuit.
14. The method as recited in claim 12 wherein said voltage scaling techniques include adaptive voltage scaling and optimization.
15. The method as recited in claim 12 wherein said normalized benchmarks include at least one metric selected from the group consisting of:
a performance metric,
a leakage power metric, and
a dynamic power metric.
16. The method as recited in claim 12 wherein said normalized benchmarks include at least one metric selected from the group consisting of:
a utilization metric, and
an area metric.
17. The method as recited in claim 12 wherein said assessing includes identifying zones of operation for using voltage scaling with said integrated circuit.
18. The method as recited in claim 12 wherein said assessing includes identifying expected performance gains associated with employing voltage scaling with said integrated circuit.
19. The method as recited in claim 12 wherein said assessing includes identifying a percentage of area reduction for said integrated circuit associated with employing one of said voltage scaling techniques.
20. An apparatus, comprising:
a metric determiner configured to obtain measurements over a voltage range and a frequency range of at least one voltage scaling metric associated with an integrated circuit across an register transfer level through a place and route portion of a design flow for said integrated circuit;
a metric normalizer configured to normalize said measurements; and
a metric assessor configured to analyze said measurements and generate ranges for benefits associated with employing voltage scaling with said integrated circuit.